"Don't get mad, get even".
When my SO does something I feel has wronged me, one of
my first reactions may be to treat them back as badly.
Usually I want them to know how they "made me
feel".
For example, they come home late after
breaking a promise to call and let me know, so I throw
their supper in the garbage. They withhold sex, so I go
out to a card game on the night I promised to go to the
movies. Or in an extreme case, they are unfaithful, so I
go out and have a fling of my own. What does such
retribution accomplish? Almost always, it makes a
difficult situation even more difficult, like throwing
gas on a fire.
No matter what wrong they may have
committed, it's impossible for them to know how exactly
how I feel - regardless of what I do - simply because my
emotions exist uniquely inside me. I can, however, tell
and show them my feelings as clearly as I can,
without muddying the waters by trying to get them to feel
the same way.
If I concentrate on healing, rather
than retribution, I'll begin to discover that my SO makes
themself more miserable than they could ever make me, in
making their harmful choices.

Just for Today
Today I'll do something to help me heal
from hurts. No matter how much something might hurt me, I
can remember that two wrongs don't make a right. Even
more, I know it will be impossible for my partner to
truly understand how their choice hurt me and why, if
their attention is occupied by how much I hurt them
in return.
A wrong plus a wrong multiplies trouble